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        <h1>Advanced Settings of the PDF Editor</h1>
        <p>The <!--<a href="https://www.onlyoffice.com/en/document-editor.aspx" target="_blank" onclick="onhyperlinkclick(this)">--><b>PDF Editor</b><!--</a>--> allows you to change its advanced settings. To access them, open the <b>File</b> tab on the top toolbar and select the <b>Advanced Settings</b> option.</p>
        <p>The advanced settings are grouped as follows:</p>

        <h3>Collaboration</h3>
        <ol>
            <li><b>Show comments in text</b>. If you disable this feature, the commented passages will be highlighted only if you click the <b>Comments</b> <div class="icon icon-commentsicon"></div> icon on the left sidebar. The option is available only when opening a common PDF file, not a form.</li>
            <!--<li><b>Show resolved comments</b>. This feature is disabled by default so that the resolved comments are hidden in the PDF text. You can view such comments only if you click the <b>Comments</b> <div class="icon icon-commentsicon"></div> icon on the left sidebar. Enable this option if you want to display resolved comments in the PDF text.</li>-->
        </ol>

        <h3>Workspace</h3>
        <ol>
            <li>The <b>Turn on screen reader support</b> option is used to enable support of screen reader software.</li>
            <li>The <b>Use Alt key to navigate the user interface using the keyboard</b> option is used to enable using the <em>Alt</em> / <em>Option</em> key in keyboard shortcuts.</li>
            <li><span class="desktopDocumentFeatures"><b>Show the Quick Print button in the editor header</b> is used in the <em>desktop version</em> to enable quick printing via the corresponding button at the top toolbar. The file will be printed on the last selected or default printer.</span></li>
            <li>The <b>RTL Interface (Beta)</b> option is used to change the direction in which elements of the interface are displayed.</li>
            <li>
                The <b>Interface theme</b> option is used to change the color scheme of the editor’s interface.
                <ul>
                    <li>The <b>Same as system</b> option makes the editor follow the interface theme of your system.</li>
                    <li>The <b>Light</b> color scheme incorporates standard red brick, white, and light gray colors with less contrast in UI elements suitable for working during the daytime.</li>
                    <li>The <b>Classic Light</b> color scheme incorporates standard red brick, white, and light gray colors.</li>
                    <li>The <b>Dark</b> color scheme incorporates black, dark gray, and light gray colors suitable for working at night.</li>
                    <li>The <b>Contrast Dark</b> color scheme incorporates black, dark gray, and white colors with more contrast in UI elements, highlighting the working area of the file.</li>
                    <li>
                        The <b>Turn on document dark mode</b> option is used to make the working area darker when the editor is set to the <b>Dark</b> or <b>Contrast Dark</b> interface theme. Check the <b>Turn on document dark mode</b> box to enable it.
                        <p class="note"><b>Note</b>: Apart from the available <b>Light</b>, <b>Classic Light</b>, <b>Dark</b>, and <b>Contrast Dark</b> interface themes, ONLYOFFICE editors can now be customized with your own color theme. Please follow <a target="_blank" href="https://helpcenter.onlyoffice.com/installation/docs-developer-change-theme.aspx" onclick="onhyperlinkclick(this)">these instructions</a> to learn how you can do that.</p>
                    </li>
                </ul>
            </li>
            <li>
                The <b>Default Zoom Value</b> option is used to set the default zoom value, selecting it in the list of available options from 50% to 500%. You can also choose the <em>Fit to Page</em>, <em>Fit to Width</em>, or <em>Last Used</em> option.
                <p class="note">The <em>Last Used</em> option refers to the last set scaling during the current session.</p>
            </li>
            <li>
                The <b>Font Hinting</b> option is used to select how fonts are displayed in the PDF Editor.
                <ul>
                    <li>Choose <b>As Windows</b> if you like the way fonts are usually displayed on Windows, i.e., using Windows font hinting.</li>
                    <li>Choose <b>As OS X</b> if you like the way fonts are usually displayed on a Mac, i.e., without any font hinting at all.</li>
                    <li>Choose <b>Native</b> if you want your text to be displayed with hinting embedded into font files.</li>
                    <li>
                        <b>Default cache mode</b> - used to select the cache mode for the font characters. It’s not recommended to switch it without any reason. It can be helpful in some cases only, for example, when an issue in the Google Chrome browser with enabled hardware acceleration occurs.
                        <p>The Document Editor has two cache modes:</p>
                        <ol>
                            <li>In the <b>first cache mode</b>, each letter is cached as a separate picture.</li>
                            <li>In the <b>second cache mode</b>, a picture of a certain size is selected where letters are placed dynamically, and a mechanism for allocating/removing memory in this picture is also implemented. If there is not enough memory, a second picture is created, etc.</li>
                        </ol>
                        <p>The <b>Default cache mode</b> setting applies the two above-mentioned cache modes separately for different browsers:</p>
                        <ul>
                            <li>When the <b>Default cache mode</b> setting is enabled, Internet Explorer (v. 9, 10, 11) uses the <b>second cache mode</b>, other browsers use the <b>first cache mode</b>.</li>
                            <li>When the <b>Default cache mode</b> setting is disabled, Internet Explorer (v. 9, 10, 11) uses the <b>first cache mode</b>, other browsers use the <b>second cache mode</b>.</li>
                        </ul>
                    </li>
                </ul>
            </li>
        </ol>
        <p>To save the changes you made, click the <b>Apply</b> button.</p>
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